A funeral service on Friday in eastern Iowa focused on the generosity of two adult sisters found shot to death in their Pittsburgh home.

Hundreds packed the Mass at Jesus Christ Prince of Peace Church in Clinton for Susan Wolfe, 44, and Sarah Wolfe, 38. The sisters were remembered as caring and helpful in speeches from family and friends, the Clinton Herald reported.

"Both of my little sisters were incredible," said Mary Wolfe, an Iowa Democratic state representative who lives in Clinton. She spoke at a luncheon after the service. "Make sure you know how fabulous your family is and tell them that every day."

The women were part of a family of six daughters and two sons from Clinton. Sarah Wolfe was a psychiatrist for Western Psychiatric Institute and Clinic, and Susan Wolfe was a teacher's aide at Hillel Academy. Susan Wolfe, nicknamed Suzy, had recently moved to Pittsburgh to live with her sister.

Authorities found the women dead on Feb. 7 after they didn't show up for work. They were discovered in the basement of the home they shared in Pittsburgh. Both died of single gunshot wounds to the head.

No arrests have been made in the case, which is being investigated as a double homicide.

The family on Friday continued to thank the community for their support. Several Iowa lawmakers attended the funeral service, including Democratic Iowa House Minority Leader Mark Smith, of Marshalltown.

The family is asking donations be sent to the YWCA Clinton and L'Arche, a nonprofit group. Susan Wolfe previously worked for both organizations.